STARLINK-2517, 48309

Orbit data source: Space-Track

STARLINK-2517, 48309 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 29 Apr 2021 UTC via an FALCON 9 launch vehicle from the Air Force Eastern Test Range (AFETR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

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Iframe URL

https://www.satcat.com/sats-embedded/48309?theme=dark&initialShowStats=false

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Identifier

48309, 2021-036AK

Orbit

LEO

Country

Related business

SpaceX (US)

Manufacturer

SpaceX/Seattle

Mission

Operational Commercial Communications

Bus & Motor

STARLINK, Unknown motor

Mass

260 kg wet, ~248 kg dry

Launch date (UTC)

2021-04-29 (5 years ago)

Launch vehicle

FALCON 9

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 1 Pan, 10.1 m

Radar Cross Section

13.562 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 13 hours ago

TLE from 13 hours ago

0 STARLINK-2517
1 48309U 21036AK  26095.02173254  .00005425  00000-0  19037-3 0  9991
2 48309  53.1586 326.0550 0001173  98.0275 262.0859 15.31016518272259

Epoch: 2026-04-05T00:31Z

TLE epoch observation values (Epoch: 2026-04-05T00:31:17.691Z)

Latitude

-0.00004°

Longitude

124.89813°

Altitude

473.789 km

Speed

7.63 km/s

True Right ascension

21h 44m 13s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

19:29:00

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

473.839 km

Perigee altitude

472.231 km

Semi-major axis

6,851.172 km

Eccentricity

0.00012

Inclination

53.1586°

RAAN

326.055°

Arg. of periapsis

98.0275°

True anomaly

262.07259°

Mean anomaly

262.0859°

Eccentric anomaly

262.07924°

Mean motion

3.82733 °/min

Orbital period

94.06 mins

BSTAR

0.00019037

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Other satellites on launch #36 in the year 2021 (2021-04-29 UTC)

FALCON 9 DEB, 48338 (Decayed)

STARLINK-2540, 48290 (Decayed)

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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

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STARLINK-2517 Visibility forecast

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Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
6 mins	2026-04-05 17:56:00.540Z	219.833° SW	2026-04-05 17:59:00.540Z	105.607° ESE	42.838°	2026-04-05 18:02:00.540Z	54.547° ENE
4 mins	2026-04-05 22:53:00.540Z	341.954° N	2026-04-05 22:55:00.540Z	15.801° NNE	14.592°	2026-04-05 22:57:00.540Z	51° ENE
6 mins	2026-04-06 00:31:00.540Z	320.341° NNW	2026-04-06 00:34:00.540Z	69.654° E	39.072°	2026-04-06 00:37:00.540Z	117.161° SE

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out STARLINK-2517, 48309 on other resources

View STARLINK-2517, 48309 on NASA - NSSDCA Website

View STARLINK-2517, 48309 on Heavens-Above

View STARLINK-2517, 48309 on Keep Track

View STARLINK-2517, 48309 on Celestrak

View STARLINK-2517, 48309 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

STARLINK-2517, 48309

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 13 hours ago

TLE from 13 hours ago

TLE epoch observation values (Epoch: 2026-04-05T00:31:17.691Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #36 in the year 2021 (2021-04-29 UTC)

STARLINK-2517 Visibility forecast

Co-orbital & Co-planar RSOs

Check out STARLINK-2517, 48309 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 13 hours ago